Madden 08
They say the difference between the 60 fps vs. 30 fps are really seen during animations and tackling.
I haven't got the game yet, for 360, but it seems PS3 fans are disappointed across the board with 30 fps.
Bioshock Demo
Downloaded the demo on Monday for 360. Fantastic! Graphics are unbelievable. This might be game of the year, even with Halo 3 coming out in September. Comes out 8-21-07.